html{
    background:url(./images/jsdrmpkit.jpg) bottom center;
    font-size: 10px;
    background-size: cover; 
}
html,body{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

.keys{
    display: flex;
    flex: 1;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}
.key{
    border: 0.4rem solid black;
    border-radius:0.5rem;
    font-size: 1.5rem;
    margin: 1rem;
    padding: 1rem 0.5rem;
    transition: all 0.07s ease;
    width: 10rem;
    text-align: center;
    color: white;
    background-color: rgba(0, 0, 0, 0.4);
    text-shadow: 0 0 0.5rem black;
}
.playing{
    transform: scale(1.1);
    border-color: #ffc600;
    box-shadow: 0 0 1rem #ffc600;
}

kbd{
    display: block;
    font-size: 4rem;
}
.sound{
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    color: #ffc600;
}